By Doreen Hemlock, Sun Sentinel, Fort Lauderdale, Fla. Jan. 27--Fort Lauderdale-based retailer AutoNation on Thursday reported record profits for the fourth quarter and 2011, stoked by more efficient operations and higher prices on the vehicles it sold. Consumers can expect to pay even more for new vehicles from all retailers this year, as buyers add more high-tech features to smaller rides and automakers keep new supplies in check, analysts said. The average price paid for new vehicles nationwide -- after incentives -- rose beyond $30,000 at the end of last year for the first...